As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT OF CARGO BAY AT BS 1544, BL 0 INTERNAL SKIN IS CORRODED AROUND DRAIN VALVE. MAJOR REPAIR ACCOMPLISHED, REMOVED CORROSION AND FOUND MATERIAL LOSS OUT OF LIMITS OF SRM. TRIMMED OUT DAMAGE AND ACCOMPLISHED NDT OF REPAIR AREA AND OPEN HOLES FOR CRACKS. NONE FOUND. FABRICATED AND INSTALLED DOUBLER AND TRIPLER REPAIR.